Abstract: An apparatus and method are disclosed for inducing fluid flow. A fluid flow apparatus includes a directional membrane, a directional flow mechanism, and an oscillation module. The directional membrane allows a fluid to pass through the directional membrane in a first direction and resists fluid passing through the directional membrane in a second direction, the first direction substantially opposite the second direction. The directional flow mechanism allows a fluid to flow in a third direction and resists fluid flow in a fourth direction, the third direction substantially opposite the fourth direction. The oscillation module induces an oscillation in the directional membrane, wherein the oscillation of the directional membrane induces a flow of the fluid through the directional membrane in the first direction.

Abstract: A fluid tube includes: a first fluid tube; a second fluid tube connected to the first fluid tube; and a flow velocity equalizer in the second fluid tube, where the flow velocity equalizer increases a uniformity of fluid flow passed therethrough, the second fluid tube is wider than the first fluid tube, and the flow velocity equalizer includes a diverging tube and a converging tube. The fluid tube may further include a fluid divider between the flow velocity equalizer and the first fluid tube. The diverging tube of the flow velocity equalizer may have a width increasing in a fluid flow direction, and the converging tube of the flow velocity equalizer may include a plurality of converging tubes having widths decreasing in the fluid flow direction.

Abstract: A vent duct having an inner fluid flow passage includes a bent portion formed to a duct body portion at which the fluid flow passage is bent, and a protruded portion formed on a downstream side of the bent portion so as to protrude from an inner peripheral surface portion toward an axial center of the fluid flow passage, wherein the protruded portion includes an upstream side end portion formed to be gently continuous to the inner peripheral surface portion of a downstream side portion of the bent portion, a body portion extending from the upstream side end portion toward the downstream side portion along the fluid flow passage, and a downstream side end portion along the fluid flow passage to be continuous to the body, the downstream side end portion of the protruded portion being formed to be perpendicular to the inner peripheral surface portion.

Abstract: An inlet device for an aftercooler is provided. The inlet device includes a body defining an elongated flowpath therein. The body includes a front opening disposed at a beginning of the flowpath. The body further includes a bottom opening disposed at an angle with respect to the front opening and at an end of the flowpath. The inlet device further includes at least two baffles disposed in the flowpath between the front opening and the bottom opening. The baffles have different heights measured from the bottom opening, and the respective heights of the baffles increase with distance from the front opening.

Abstract: A fluid flow director for use in a water treatment system is provided. The fluid flow director is defined by a plastic sheet made up of a plastic substrate with a protective coating. The plastic substrate has fasteners disposed along two parallel edges thereof and the protective coating is substantially opaque to UV light. The plastic sheet is configured to be helically rolled such that the fasteners align and sealingly mate to form a tube. The fasteners are sized, constructed, and arranged to sealingly mate to form a substantially water-tight seam therebetween. In one embodiment, the plastic substrate is polyethylene and the UV opaque coating is polytetrafluoroethylene (“PTFE”).

Abstract: A fluid conveying apparatus including a wall structure forming a channel for conveying fluid. The channel is bounded by an interior face of the wall structure. A rice leaf-like textured surface is formed on the interior face. The textured surface includes a plurality of micropillars projecting from the interior face and arranged in a geometry akin to rice leaf micropapillae. In some embodiments, the textured surface is a replica of a rice leaf hierarchical structure. In other embodiments, the micropillars are arranged to define a plurality of longitudinal grooves having a transverse sinusoidal pattern. The micropillars can are arranged in a substantially uniform micropattern, and have a diameter of about 2 ?m, a height of about 4 ?m, and a pitch distance of about 4 ?m. A nanostructured coating can assist in rendering the micropillars superhydrophobic, and mimics the waxy nanobumps of a native rice leaf.

Abstract: Accurate measurement of exhaust gas compounds is necessary for correct operation of exhaust treatment systems, such as Selective Catalytic Reduction (SCR) units used in diesel engines. However, accurate sensor readings assume an even distribution of compounds in an exhaust stream in order to use a sampled measurement to be extrapolated to the compound concentrations in the full stream. A structure placed in an exhaust passage downstream of an SCR reaction unit causes turbulence in the exhaust gas while developing a minimal backpressure. This turbulence helps create a more uniform distribution of compounds in the exhaust. As a result, an exhaust gas sensor gives more accurate readings even when the sensor is placed in relatively close proximity to an output of the SCR system.

Abstract: The invention relates to a centrifugal pump assembly with at least one impeller, with a suction union, which is situated on the entry side of the impeller, and with a pressure union, which is situated on the exit side of the impeller. A flow sensor and at least one guidance element are arranged in a conduit section, which is formed by the suction union and/or by the pressure union. The guidance element is suitable for influencing the flow prevailing in the conduit section.

Abstract: An apparatus for straightening fluid flow in a conduit or pipeline, such as an irrigation pipeline, resides in an integral assembly of a conical fluid flow displacement member effective to substantially lineralize the velocity profile of fluid flowing through the pipeline and a plurality of circumferentially spaced vanes extending longitudinally and radially of the conical member and effective to mitigate swirl and eccentric velocity profiles in the flowing fluid. The conical member consists simply of a single cone that is centered in the pipeline by the vanes. A bolt extending through the wall of the pipe and threaded into a nut on a vane secures the straightener in the line.

Abstract: An assembly for mixing liquid within a gas flow includes a hollow conduit that is configured for containing a flow of gas and liquid droplets. The assembly also includes multiple spaced blades and an impingement element. Each of the blades is operatively connected to and extends from the impingement element and is connected to an inner wall of the conduit. The impingement element is upstream of the blades in the flow of gas. The impingement element and the blades are configured to create a preferred distribution of the liquid droplets within the gas flow downstream of the blades within the conduit.

Abstract: A pipe fitting includes a pipe fitting body having a first end in fluidic communication with a second end, the ends configured to receive a pipe. At least one of the first or second ends comprises a non-circular sectional shape having a low flow enhancement channel disposed at a bottom. The low flow enhancement channel is configured to comprise a first depth of a fluid that is greater than a second depth of the same fluid in a substantially circular section pipe where the non-circular sectional shape and the circular section pipe comprise substantially the same overall cross sectional area. A stand may be associated with the pipe fitting, the stand configured to accept the pipe fitting body in an orientation where the low flow enhancement channel is disposed at the bottom of the non-circular shape.

Abstract: An arrangement for a control valve for controlling pressure and flow rate of a fluid, the fluid flowing via an inlet into the control valve being brought to rotate about a main flow axis before the fluid, at least with reduced pressure or speed energy, flows via an outlet opening from the control valve and where at least one inlet port communicating with the inlet being provided tangentially in relation to an inlet portion of the speed reduction chamber located in the control valve, and where the speed reduction chamber, provided substantially concentric with the main flow axis, is divergent over at least the first portion of the main flow direction.

Abstract: A dynamic fluid flow control structure is provided that allows precise control over fluid flow using a series of two or more orifices, at least one of which may be reconfigured to change its flow characteristics. A flood control system and a flood control process are provided that emulate a preset discharge profile over time. Some versions of the structure, process, and system can be used to provide controlled storm discharge patterns in a developed area that emulate the natural pre-development discharge patterns.

Abstract: A duct intersection comprising a first duct portion and a second duct portion extending laterally from a side of the first duct portion. At least one flow modifier is mounted inside one of the first and second duct portions. The flow modifier is a contoured duct liner and/or the flow modifier includes at least one turning vane. The duct intersection may also include a transition portion extending between the first and second duct portions, wherein the transition portion has a length extending along a side of the first duct portion and a depth extending away from the side of the first duct portion, wherein the length is greater than a diameter of the second duct portion.

Abstract: A flow stabilizer includes a base, a noise reduction structure, and a plurality of protrusion structures. The noise reduction structure is disposed on the base. The protrusion structures are disposed between the base and the noise reduction structure. The protrusion structures define a plurality of intervals, and at least two intervals are not equal.

Abstract: The tube flow turbulator, type TC-09/A-B, resulted from work in measuring and regulation technology, and resolving problems in this field of work. The tube flow turbulator solves the problem of dirt collection in control assemblies and enhances operation of a dirt collector. The advantage of the tube flow turbulator is that Maximally reduces necessity for human intervention, and resolves problems in cases where there are no dirt collectors. It is simply installed in a closed pipeline system, between pipeline and control assembly flanges with two seals.

Abstract: An exhaust pipe through which an exhaust port of an internal combustion engine and a catalyst for purifying an exhaust gas of the internal combustion engine are connected to each other includes a porous portion that is provided on at least a part of an inner peripheral face of the exhaust pipe. A thermal conductivity that the porous portion exhibits in a high temperature state where a temperature of the exhaust gas is as high as it is required to radiate a heat of the exhaust gas through the exhaust pipe is at least ten times higher than a thermal conductivity that the porous portion exhibits in a low temperature state where the temperature of the exhaust gas is as low as it is required to warm the catalyst up.

Abstract: A fluid pathway is provided with a flow controller in at least a portion of its length wherein the flow controller comprises an active surface capable of influencing the fluid flow through the fluid pathway, the configuration of the active surface conforming to at least one logarithmic curve conforming to the Golden Section.

Abstract: An exit assembly comprises: a fluid inlet; an exit chamber; a fluid outlet; and a fluid diverter, wherein the fluid diverter is connected to the fluid inlet and the exit chamber, and wherein the shape of the fluid diverter is selected such that the fluid diverter is capable of displacing the pathway of the fluid from the fluid inlet into a first fluid pathway, a second fluid pathway, or combinations thereof. The fluid diverter increasingly displaces the pathway of the fluid from the fluid inlet into the first fluid pathway as the viscosity or density of the fluid decreases, or as the flow rate of the fluid increases, and the fluid diverter increasingly displaces the pathway of the fluid from the fluid inlet into the second fluid pathway as the viscosity or density of the fluid increases, or as the flow rate of the fluid decreases.

Abstract: The present invention relates to a method for manufacturing a solid body having a superhydrophobic surface structure formed by using a surface treatment of a metal body, a replication process, and a polymer sticking phenomenon to increase efficiency of fluid transfer and prevent foreign materials from being accumulated in the tube, and a superhydrophobic fluid transfer tube using the method. The superhydrophobic fluid transfer tube includes a fluid guider and a solid body provided on a fluid contact surface of the fluid guider and has micrometer-scaled unevenness and nanometer-scaled protrusions.

Abstract: A water hammer mitigation device includes an inlet, an outlet, an expansion housing, and a deflector. The inlet receives fluid from a source. The outlet passes the fluid to a destination. The expansion housing is disposed between the inlet and the outlet. The expansion housing defines an internal expansion chamber having an expansion volume sufficient to hold a plurality of volume units of the fluid. Each volume unit is defined by a fluid flow volume over a duration of time. The deflector is disposed within the expansion chamber. The deflector substantially redirects a backward energy pulse, which enters the expansion chamber through the outlet, away from the inlet.

Abstract: A fluid flow control and debris intercepting apparatus for controlling the flow of fluid and the introduction of debris into the entrance of a water diversion system such as a curbside storm drain.

Abstract: Methods and devices are described for reducing flow resistance in a flow restrictor during high flows.

Abstract: An exhaust diffuser having an outer turbine mounting interface, an outer exhaust collector mounting interface, an outer diffuser wall extending between the outer turbine mounting interface and the outer exhaust collector mounting interface, an inner turbine mounting interface, an inner exhaust collector mounting interface, an inner diffuser wall extending between the inner turbine mounting interface and the inner exhaust collector mounting interface, and a plurality of struts circumferentially distributed around the center axis and extending between the outer diffuser wall and the inner diffuser wall, wherein each of the plurality of struts is radially curved between the diffuser flow outer wall and the diffuser flow inner wall, respectively, and wherein the termination points of each strut is outer wall interface are radially offset from each other.

Abstract: A fluid flow control device that controls a flow of fluid within the flow control device has a flow path to convey the fluid. A cross-sectional area of the flow path varies along the flow path. At least a portion of the length of the fluid flow control device includes an active surface capable of influencing the fluid flow through the flow path to cause vortical motion of the fluid within the fluid pathway.

Abstract: A diffuser assembly for a hydraulic reservoir is disclosed. The diffuser assembly includes an inlet tube for connection to the inlet to the reservoir. A middle portion of the middle tube is connected to a plurality of diffusers. The diffusers are disposed at an angle with respect to an axis of the inlet tube and the axis of the inlet to the reservoir so that fluid flowing into the reservoir must change flow directions for entering and exiting the diffusers. The disclosed diffuser assembly is less prone to damaged cause by fluid flow spikes and is particularly useful for high flow/high pressure applications.

Abstract: A flow stabilizer includes a base and a noise reduction structure. The noise reduction structure is disposed on the base, and it includes a first surface and a second surface. The edges of first surface and the second surface are curved.

Abstract: A flow stabilizer includes a base, a noise reduction structure, and a plurality of protrusion structures. The noise reduction structure is disposed on the base. The protrusion structures are disposed between the base and the noise reduction structure. The protrusion structures define a plurality of intervals, and at least two intervals are not equal.

Abstract: A system for conveying fluid includes a conduit segment and a pump disposed downstream of and fluidicly coupled to the conduit segment. The conduit segment has an interior volume for conveying the fluid in a predetermined direction of flow and a plurality of elongate vanes disposed within the interior volume.

Abstract: A flow control grid includes a plurality of channel assemblies connected to one another. Each of the plurality of channel assemblies defines a flow straightening section and a flow turning section. The flow turning section has an arcuate segment and a first substantially flat segment. The first substantially flat segment is positioned in the flow straightening section. The arcuate segment extends outwardly from the flow straightening section.

Abstract: A method of lubricating an interior of a tube includes applying a lubricant including a mixture of an additive and a solvent into an interior of a tube. A flow of drying agent is injected into a first end of the tube to force the solvent from the interior of the tube via a second end of the tube thereby leaving a coating of additive at the interior of the tube. The drying agent is heated to remove additional solvent from the interior of the tube via evaporation.

Abstract: An air flow accelerator for creating an air current. The air flow accelerator comprises an air inlet, an air outlet, an impeller, and a motor for rotating the impeller to create an air flow passing from the air inlet to the air outlet. The air outlet comprises a first elongate plenum having an interior passage for receiving the air flow, and a second elongate plenum connected to the first elongate plenum by a common wall between the first elongate plenum and the second elongate plenum. The common wall has a plurality of apertures therein. The second elongate plenum comprises a plurality of chambers such that one or more of the apertures connects to each of the chambers. The second elongate plenum further comprises a narrow slot for emitting the air flow. The air flow emitting from the slot forms a jet inducing a flow of air from outside the air flow accelerator.

Abstract: The present invention is to suppress generation of cavitation in an impeller of a pump and disproportion of generation areas thereof by suppressing a secondary flow generated in a bent portion of a pump suction pipe. A pump suction pipe includes: a suction pipe outlet portion that is connected to an impeller suction port of a pump and is arranged in the up-and-down direction; a suction pipe inlet portion that is arranged in the lateral direction; and a suction pipe bent portion that connects the suction pipe outlet portion and the suction pipe inlet portion to each other and changes a flow from the lateral direction to the up-and-down direction. The distance from a reference point to an inner end of the suction pipe bent portion is monotonically increased from the upstream side to the downstream side on a vertical cross-section.

Abstract: An air supply pipe includes a curved pipe portion having a first end and a second end, a first straight pipe portion extended along a first direction and a second straight pipe portion extended along a second direction. The cross-sectional shape of the curved pipe portion is a rectangular shape having longer sides in a third direction.

Abstract: The present invention provides a fluid flow displacement member for linearizing the fluid inside a polygon conduit comprising in relation to the direction of fluid an upstream end and an optional downstream end, after the upstream end at least one peripheral edge. Also within the scope of this invention is a fluid flow apparatus containing such a fluid flow displacement member.

Abstract: Provided is an apparatus for treating a substrate. The apparatus comprises a plasma boundary limiter unit disposed within a process chamber to surround a discharge space defined above a support unit. The plasma boundary limiter unit comprises a plurality of plates disposed along a circumference of the discharge space, and the plurality of plates are spaced apart from each other along the circumference of the discharge space so that a gas within the discharge space flows to the outside of the discharge space through passages provided between the adjacent plates.

Abstract: Segmented ductwork fittings shaped to minimize waste and labor while retaining the performance characteristics of traditional radius fittings. Lean Duct fittings utilize both curved sections and straight tubular sections at an angle to one another to provide a predetermined change in the direction or location of fluid flow through the finished duct system.

Abstract: An assembly for controlling water turbulence through a high pressure cleaning machine includes a nozzle body, which has an inlet, an outlet, and a flow path. The nozzle body has a fastening end that is designed to couple the nozzle body to a pressure washer, at an end of a spray gun shaft, for example. The nozzle body also includes a plurality of conduits (e.g., an array of tubules) arranged in parallel with each other along the flow path and located between the inlet and the outlet. Additionally the nozzle body may include a screen or screens positioned along the flow path. The plurality of conduits and the screens are designed to reduce a turbulence of a water flowing through the assembly.

Abstract: An HVAC duct system of a vehicle includes an air duct for providing a passageway for forced conditioned air. The air duct having a first imaginary axis extending substantially parallel with the passageway. An air duct register having plurality of vane-like members for directing the flow of air as it exits the register is coupled to the air duct. An opening of the air duct register defines an imaginary plane. The register has a second imaginary axis extending perpendicular to the imaginary plane of the register. An air flow straightener disposed within the air duct juxtaposed to the register and includes an air guide member. The air guide member receives the forced air flowing through the air duct in a direction substantially parallel with the first imaginary axis and redirects the forced air in a direction substantially parallel with the second imaginary axis for reducing noise as air passes the vanes.

Abstract: The invention relates to a flow conditioner for conditioning a fluid flow comprising a pipe having a constriction with a reduced pipe cross-section, at least one ring-shaped element arranged inside the pipe which has an outer diameter which is smaller than the inner diameter of the pipe in the axial region of the pipe in which the at least one ring-shaped element is arranged, and having an areal web whose surface normal is not in parallel with the pipe axis. The invention further relates to a throughflow measurement system for measuring a fluid throughflow through a pipe having a measurement device and a flow conditioner in accordance with the invention arranged upstream of the measurement device.

Abstract: Flow restrictors (4), (14) are widely utilized with regard to providing flow control in such situations as with respect to sealing and pressurization of bearing chambers in gas turbine engines. The restrictor (4), (14) restricts a flow (5), (15) but with prior arrangements may be susceptible to deposition upon flank surfaces of the restrictor (4). These depositions may fragment and block an aperture (7), (17) of the restrictor (4), (14) reducing operational effectiveness. By provision of a deflector (18) having a deflector surface (19) flows (15) can be presented such that a greater proportion of the flow including droplets or other matter which may result in surface deposition or erosion will pass directly through an aperture (7, 17) rather than impinge upon the flank surfaces of the restrictor (14). Furthermore, the deflector (18) is dimensioned such that surfaces which may be susceptible to deposition have dimensions smaller than the aperture (17).

Abstract: One embodiment of a device and method for controlling or restricting the air-fuel mixture into an internal combustion engine having a body member rigidly mounted between the air-fuel metering device and the engine intake, a slidably insertable restrictor plate, and a retaining and sealing cover. The body member may contain a single spacer or two spacers and may contain either a slot or a groove that communicates with the plate. The plate may contain a plurality of bore holes and multiple distinct plates can be made in order to achieve various and linear amounts of restriction. The plate can be easily and quickly changed depending on the amount of restriction desired. One or more embodiments of the device can be used on engines in various motorized vehicles and in various motorsports, such as drag racing. Other embodiments are described and shown.

Abstract: According to an embodiment, an exit assembly comprises: a fluid inlet; an exit chamber; a fluid outlet, wherein the fluid outlet is located within the exit chamber; and a fluid diverter, wherein the fluid diverter is connected to the fluid inlet and the exit chamber, wherein a fluid is capable of flowing from the fluid inlet, through the fluid diverter, and into the exit chamber, and wherein the shape of the fluid diverter is selected such that the fluid diverter is capable of displacing the pathway of the fluid from the fluid inlet into a first fluid pathway, a second fluid pathway, or combinations thereof, wherein the first fluid pathway and the second fluid pathway are located within the exit chamber.

Abstract: A bite block includes: a first wall defining a hole into which a conduit pipe is to be inserted; a second wall surrounding the first wall to define a flow path with the first wall; and a sample port communicating with the flow path.

Abstract: An apparatus is provided and includes a plenum into which a fluid is exhausted, the plenum including a wall toward which the exhausted fluid is directed, the wall including first sections, second sections interposed between the first sections and a flow splitter interposed between the second sections, and a plane of the second sections being recessed from a plane of the first sections and the flow splitter protruding from the plane of the second sections.

Abstract: An apparatus, system and method are disclosed for manipulating a user's erogenous zone. The apparatus includes a chamber, a plurality of baffling elements, and a concentration member. The chamber has a first end opposing a second end. The first end of the chamber is communicable in water receiving communication with a water source. The plurality of baffling elements are positioned within the chamber and are configured to interrupt a flow of water received from the first end of the chamber. The concentration member defines a channel having a water receiving end and a water dispensing end. The channel has a converging cross-sectional area in a direction from the water receiving end to the water dispensing end with the water receiving end communicable in water receiving communication with water flowing past the baffling elements.

Abstract: An apparatus and method are disclosed for inducing fluid flow. A fluid flow apparatus includes a directional membrane, a directional flow mechanism, and an oscillation module. The directional membrane allows a fluid to pass through the directional membrane in a first direction and resists fluid passing through the directional membrane in a second direction, the first direction substantially opposite the second direction. The directional flow mechanism allows a fluid to flow in a third direction and resists fluid flow in a fourth direction, the third direction substantially opposite the fourth direction. The oscillation module induces an oscillation in the directional membrane, wherein the oscillation of the directional membrane induces a flow of the fluid through the directional membrane in the first direction.

Abstract: A loading assembly for a turbine system is disclosed. The loading assembly includes a transition duct and a load member. The transition duct extends between a fuel nozzle and a turbine section, and has an inlet, an outlet, and a passage extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis. The outlet of the transition duct is offset from the inlet along the longitudinal axis and the tangential axis. The load member extends from the transition duct and is configured to transfer a load between the transition duct and an adjacent transition duct along at least one of the longitudinal axis, the radial axis, or the tangential axis.

Abstract: A static conditioner for mounting within a tubular conduit in turn supporting fluid flow therein and including a two-stage construction having a first stage including primary vanes including laterally extending caps radially inwardly extending into the fluid flow so as to separate and direct flow against the conduit walls and a second stage of secondary plates positioned immediately downstream of the first stage and laterally offset therefrom so as to eliminate swirl and turbulence remaining in the flow after the first stage.

Abstract: A system for venting a high-pressure flow stream is disclosed, the system comprising a device having a plurality of orifice plates, each orifice plate having a plurality of orifices, wherein the plurality of orifice plates are oriented relative to each other such that the pressure of the flow stream substantially drops.